KYW Crystal Secrets
KYW Crystal Secrets
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW may be very big when compared with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from mode-locked lasers. Values nicely under one hundred fs are obtained with passive manner locking.
The comparison with glasses is acceptable For the reason that massive obtain bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
Femtosecond laser based upon Yb:KYW crystals with suppression of spectral narrowing inside a regenerative amplifier by spectral profiling of the pulse
FIG. 4. Autocorrelation operate of the heartbeat 共a兲and spectrum 共b兲of the laser with an oblong Energetic aspect for an output power of 700 mW. The width of
By substituting yttrium with ytterbium in the crystal lattice of Yb:KYW as a result of related measurements of those chemical things nearly 100% of Yb-doping may be realized. This exceptional attribute permits ytterbium to take the spot of yttrium with nearly no disruption towards the crystal’s lattice.
Adhesion Check Compliant with MIL-C-675C armed service benchmarks, an adhesion test involved implementing a tape that meets LT-90 specifications on to the lens movie layer. The tape was affixed thoroughly after which taken out vertically. This treatment was done three times, resulting in no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical characteristics owing to your existence of thulium ions, and as a consequence the materials could be additional researched within the scope of laser and luminescence applications.
A higher brightnessQ-switched oscillator and regenerative amplifier according to a twin-crystal Yb:KGW laser
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Significant-electrical power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical purposes
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Li2WO4-WO3 flux was successfully applied minimizing The expansion temperature down below 900 oC. In accordance with solitary crystal x-ray measurements, the crystal corresponds to your P2/n House team.
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at place temperature were measured. The emission spectrum and life time on the three File four psyched state were established. Making use of common and modified Judd–Ofelt theories, the depth parameters plus the radiative lifetimes ended up click here calculated and superior settlement While using the experimental success was attained for both of those theories.
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